172 HETEROMERA. 
This widely distributed Tropical-American species seems to be the Hypophleus rufipes 
of Fabricius; it may be known by its comparatively very large size (7-10 millim.), the 
acutely produced anterior angles of the thorax, the very prominent humeri, the somewhat 
convex interstices, the swollen inner apices of the femora, and the slightly pubescent 
under surface. In both sexes the inner edges of all the tibiz are clothed with short 
fulvous hairs; in the male the tibie are rather longer, sinuous within and more dilated 
towards the apex, and the hairs longer than in the female. 
Labelled H. bacculus, Deyr., in the Sallé collection. 
2. Corticeus mexicanus. 
Corticeus mexicanus, Reitter, Verh. zool.-bot. Ges. Wien, xxvii. p. 191’. 
Hab. Muxico! (coll. Oberthiir, F. Bates), Cordova (Sallé), Jalapa (Hoge); GUATEMALA, 
Cerro Zunil, Las Mercedes, Zapote (Champion) ; Nicaraaua, Granada (Sallé); Panama, 
Bugaba, Volcan de Chiriqui (Champion).—CotomB1a (coll. F. Bates). 
A generally distributed and locally abundant species in our region ; found beneath 
sappy bark, often in company with C. rufipes. | 
C. mexicanus may be readily known from C. rufipes by the comparatively shorter 
thorax, the straighter base of the elytra, the flat interstices, the produced outer apical 
angle of the anterior tibie, &c.; it varies greatly in size, from 4 to 7 millim. ; allied, but 
more distantly, to the European C. castaneus, Fabr., and also to C. eylindricus, Reitter, 
from Colombia. 
I am indebted to M. Réné Oberthiir for the loan of the types of this species. 
Labelled Hypophleus flavipes, Chevr., in the Sallé collection. 
3. Corticeus longicornis. 
Subcylindrical, moderately convex, black, shining. Head very closely and confluently punctured, broadly and 
shallowly excavate between the cyes, black, the oral organs red; antenne long (reaching to beyond the 
middle of the prothorax), setose, the joints not very closely articulated, black, the basal and apical joints 
more or less red; prothorax very feebly rounded at the sides, slightly narrower behind, the base and apex 
almost straight, the angles distinct, the surface closely and not very finely punctured; elytra truncate at 
the base, the humeri distinct, finely and very distinctly punctured, the punctures arranged in close irre- 
gular rows; legs dark reddish brown, the outer apical angle of the anterior tibie angularly produced ; 
beneath closely and coarsely punctured. 
Length 4 millim. 
Hab. Mexico (coll. F. Bates). 
Two examples. 
4, Corticeus puncticollis. 
Cylindrical, convex, black, shining. Head in the female coarsely and closely punctured, in the male the 
epistoma smoother and convex, and the intraocular space transversely and narrowly raised in the 
